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Effects of the indium doping on structural and optical properties of CdSe thin films deposited by laser ablation technique

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Abstract:

Thin films of n-type CdSe have been grown on a quartz substrate by laser ablating a target obtained by mixing CdSe and metallic In powders. The effects of different doping concentration of In have been investigated. X-ray diffraction spectra show that at low In density only the CdSe lattice is present in the deposited film, whereas CdIn2Se4 and InSe compounds are deposited at higher In concentration. Band gap narrowing and band tails are observed in the absorption spectra when the In concentration increases. Photoluminescence spectra show band-band recombinations from 10 K to room temperature.

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Authors and Affiliations

  1. Facoltà di Medicina e Chirurgia dell'Università di Foggia, Viale L. Pinto, 71100 Foggia, Italy, , , , , , IT

    G. Perna & V. Capozzi

  2. Istituto Nazionale di Fisica della Materia, Unità di Bari, Via Amendola 173, 70126 Bari, Italy, , , , , , IT

    A. Minafra

  3. Dipartimento Geomineralogico dell'Università di Bari, Via Amendola 173, 70126 Bari, Italy, , , , , , IT

    M. Pallara

  4. Istituto di Metodologie Inorganiche e dei Plasmi del C.N.R., Via Orabona 4, 70126 Bari, Italy, , , , , , IT

    M. Ambrico

Authors
  1. G. Perna
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  2. V. Capozzi
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  3. A. Minafra
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  4. M. Pallara
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  5. M. Ambrico
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Additional information

Received 27 September 2002 Published online 11 April 2003

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ID="a"e-mail: giuseppe.perna@ba.infn.it

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Perna, G., Capozzi, V., Minafra, A. et al. Effects of the indium doping on structural and optical properties of CdSe thin films deposited by laser ablation technique. Eur. Phys. J. B 32, 339–344 (2003). https://doi.org/10.1140/epjb/e2003-00107-6

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  • DOI: https://doi.org/10.1140/epjb/e2003-00107-6

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